States › Oklahoma › Comanche County

Comanche County, OK Water Quality

Water quality data for 13 public water systems serving Comanche County, Oklahoma — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 13 water systems · 14 cities
✅
Generally Safe — Most Systems Performing Well

The majority of water systems have no active violations and lead levels well below the federal action level.

B

Comanche County Earns a B

Comanche County: 14 communities across 13 water systems. 92.9% have no open violations.

  • Median lead where detected: 2.30 ppb
  • 9 communities with a lead detection, 5 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 6 with significant inspection deficiencies
  • 92.9% of communities have no open violations
2.3 ppb
Median Lead Level
County-wide, 90th percentile
13
Water Systems
Active CWS & NTNCWS
92%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
⚠ Needs Attention
  • Medicine Park
    6.76 ppb
    1 violation currently open
    D
  • Indiahoma
    1.87 ppb
    Copper above the 1,300 ppb action level
    C
  • Geronimo
    1.30 ppb
    2 significant inspection deficiencies
    C
  • Elgin
    Not detected
    1 significant inspection deficiency
    B
  • Sterling
    Not detected
    2 significant inspection deficiencies
    B
County Lead Level — Median 2.3 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 2.3 ppb — 15.3% of the federal action level
Systems by Lead Level
Under 5 ppb
7
5 – 10 ppb
1
10 – 15 ppb
1
No Data
5

All Cities in Comanche County

Lawton 2.00 ppb A
Cache Not detected B
Elgin Not detected B
Fletcher Not detected B
Sterling Not detected B
Geronimo 1.30 ppb C
Chattanooga 2.33 ppb B
Medicine Park 6.76 ppb D
Indiahoma 1.87 ppb C
Lake Ellsworth Addition 2.30 ppb A
Lawtonka Acres Not detected B
Edgewater Park 2.30 ppb A
Faxon 14.00 ppb B
Lakeside Village 1.12 ppb B
Showing 14 cities
No active violations Active violations

About Comanche County Drinking Water

Comanche County is served by 13 water systems covering 14 communities. 93% have no open violations.

Of the communities reporting lead results, 9 recorded a detection, with a median of 2.30 ppb — 15% of the federal action level. 5 reported none detected, which means below the laboratory limit rather than an absence of lead.

No community here has PFAS above the federal limit on record. State inspectors recorded significant deficiencies at 6 of them.

Frequently Asked Questions

Is Comanche County tap water safe to drink?▼
93% of communities have no open violation. No community has PFAS above the federal limit on record.
What is the lead level in Comanche County?▼
Among communities with a detection the median is 2.30 ppb, 15% of the 15 ppb action level. 5 reported none detected and 0 reported no result.
How many water systems serve Comanche County?▼
13 community water systems serve 14 communities here.
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